JavaScript 및 jQuery에서 HTML 엔터티를 어떻게 디코딩할 수 있습니까?

var decodeEntities = (function() {
  var element = document.createElement('div');

  function decodeHTMLEntities(str) {
    if (str && typeof str === 'string') {
      str = str
        .replace(/<script[^>]*>([\S\s]*?)<\/script>/gmi, '')
        .replace(/<\/?\w(?:[^"'>]|"[^"]*"|'[^']*')*>/gmi, '');
      element.innerHTML = str;
      str = element.textContent;
      element.textContent = '';
    }

    return str;
  }

  return decodeHTMLEntities;
})();

var decodedString = decodeEntities("&");

jQuery.decodeEntities = decodeEntities;